Sprite（精灵）&& 三个特殊的层Layer

用来作为以后复习使用。

 1 #include "ScenceScend.h"

 CCScene* ScenceScend::scene()

 {

     CCScene* s = CCScene::create();

     ScenceScend* layer = ScenceScend::create();

     s->addChild(layer);

     return s;

 }

 bool ScenceScend::init()

 {

     CCLayer::init();

     //1.通过文件直接创建精灵

     //CCSprite* sprite = CCSprite::create();

     //CCSprite* sprite = CCSprite::create(filename,CCRect);

     //CCSprite* sprite = CCSprite::create(filename);

     //2.通过纹理去创建精灵

     //CCTexture2D* texture = CCTextureCache::sharedTextureCache()->addImage("filename");

     //CCSprite* sprite = CCSprite::createWithTexture(texture);

     //CCSprite* sprite = CCSprite::createWithTexture(texture,CCRect);也可取图片局部

     //addChild(sprite);

     //3通过精灵帧来创建

     /*

     CCSize size = CCDirector::sharedDirector()->getWinSize();

     CCTexture2D* texture = CCTextureCache::sharedTextureCache()->addImage("HelloWorld.png");

     CCSize size2 = texture->getContentSize();

     CCSpriteFrame* frame =

         CCSpriteFrame::createWithTexture(texture, CCRectMake(size2.height / 4, size2.width / 4, size2.width / 2, size2.width / 2));

     CCSprite* sprite = CCSprite::createWithSpriteFrame(frame);

     sprite->setPosition(size.width/2,size.height/2);

     addChild(sprite);

     */

     //4.通过精灵帧缓存 去创建精灵

     CCSize size = CCDirector::getInstance()->getWinSize();

     //CCTexture2D 贴图类

     CCTexture2D* texture = CCTextureCache::sharedTextureCache()->addImage("HelloWorld.png");

     CCSize size2 = texture->getContentSize();

     CCSpriteFrame* frame =

         CCSpriteFrame::createWithTexture(texture, CCRectMake(size2.height / , size2.width / , size2.width / , size2.width / ));

     CCSpriteFrameCache::sharedSpriteFrameCache()->addSpriteFrame(frame,"HXL");

     CCSprite* sprite = CCSprite::createWithSpriteFrameName("HXL");

     sprite->setPosition(size.width / , size.height / );

     addChild(sprite);

     /*

     //调用父类的初始化。因此这里是 子类方法覆盖父类了。

     CCLayer::init();

     CCLabelTTF *label = CCLabelTTF::create("hxltom","Arial",36);

     label->setPosition(CCPoint(100,200));

     addChild(label);

     */

     return true;

 }

三个特殊的层。

 #include "example2.h"

 CCScene* example2::scene()

 {

     CCScene* s = CCScene::create();

     example2* layer = example2::create();

     s->addChild(layer);

     return s;

 }

 bool example2::init()

 {

     //CCLayerColor::init();

     CCLayerColor::initWithColor(ccc4(,,,));

     //CCLayerColor::init();默认也是黑色

     //三个特殊的层。

     /*

     1.CCLayerColor 可改变layer的背景,设置层的大小

     2.CCLayerGradient 有渐变效果的层

     3.CCLayerMultiplex

     CCLayerColor::create(ccColor4B（）);

     ccColor4B（）这个类封装了颜色，里面有4个参数 r g b o  o代表透明度

     CCLayerColor::create(ccc4(255,0,0,255)); 红,绿,蓝，透明度

     CCLayerGradient

     */

 #if 0

     //CCLayerColor !!!!!!!!!!!!

     CCSize size = CCDirector::getInstance()->getWinSize();

     CCLayerColor* layer = CCLayerColor::create(

         ccc4(,,,),size.width/,size.height/

         );

     addChild(layer);

 #endif

 #if 0

     //CCLayerGradient 有渐变效果的层,透明度也可以渐变，渐变方向（第三个参数）

     //渐变默认从上往下。cp(0,1)从底下往上渐变 cp(1,1)左下角到右上角

     //CCLayerGradient* layer = CCLayerGradient::create(ccc4(255,0,0,255),ccc4(255,0,255,255));

     //一开始设置渐变方向

     CCLayerGradient* layer = CCLayerGradient::create(

         ccc4(, , , ), ccc4(, , , ),

         ccp(,)

         );

     /*

    //生成之后改变渐变方向 (两种方式等价的)

     CCLayerGradient* layer = CCLayerGradient::create(ccc4(255, 0, 0, 255), ccc4(255, 0, 255, 255));

     layer->setVector(ccp(0,1));

     addChild(layer);

     */

 #endif

     //CCLayerMultiplex可以包含好几个层，但是只是显示其中一个

     CCSize size = CCDirector::getInstance()->getWinSize();

     CCLayerColor* layer1 = CCLayerColor::create(ccc4(,,,),size.width/,size.height/);

     CCLayerGradient* layer2 = CCLayerGradient::create(ccc4(, , , ), ccc4(, , , ));

     CCLayerMultiplex* layer = CCLayerMultiplex::create(layer1, layer2, NULL);

     layer->switchTo();//设置显示第一个

     addChild(layer);

     setTouchEnabled(true);

     setTouchMode(kCCTouchesOneByOne);

     return true;

 }